Cloudy ice is just minerals and air

Cloudy ice cubes are completely harmless — it’s just dissolved minerals and trapped air freezing into the cube.

Tap water has dissolved minerals like calcium and magnesium, plus dissolved air from your water supply. When water freezes, it pushes these impurities together as the ice forms, and they get trapped. That’s the cloudiness. Bottled water or distilled water freezes clearer, but it’s the same ice chemically.

You might see advice to boil water first. That actually works — it drives off dissolved air — but it doesn’t remove minerals. The “cleanest” looking ice comes from commercial machines that stir the water while freezing, which keeps impurities from settling. Not worth doing at home.

The real thing to check: if your ice has a weird taste or smell, that’s a different problem — usually old ice, a dirty bin, or a stale filter. But cloudy ice alone? Nothing’s wrong. Most hotel ice looks cloudy.

Clear ice is a cocktail-bar aesthetic thing, not a quality thing.